Anonymous Authentication and Key Agreement Protocol Based on Distributed Intelligent Vehicle Networking System
As an important component of smart city construction, intelligent vehicle networking system has received increasing attention from academia and industry in recent years. In the intelligent vehicle networking system, the vehicle communication module transmits real-time data through the wireless sensor networks, improving the driving safety and travel efficiency of intelligent vehicles. The intelligent vehicle networking system is prone to data transmission interception in an open environment, causing sensitive information leakage, and even malicious attackers can anonymously forge the real identity of the intelligent vehicle to disrupt traffic order. Therefore, the intelligent vehicle networking system needs to achieve anonymous authentication and negotiate the correct session key to ensure the confidentiality of sensitive information. In this paper, an anonymous authentication and key agreement protocol is proposed for distributed intelligent vehicle networking system architecture. The protocol protects the authentication identifier based on the secret sharing technology of the Chinese Remainder Theorem. The intelligent vehicle can recover the corresponding identifier in different regions with linear computing overhead. The identifier can be used safely for a long time, and the intelligent vehicle can complete security authentication without using tamper proof devices. The roadside communication base station can check the anonymity and integrity of information, and negotiate the session key for subsequent secure communication with the intelligent vehicle, while achieving bidirectional authentication. In addition, the protocol can expand practical functions such as batch anonymous authentication, domain key update, vehicle to vehicle anonymous authentication, and anonymous identity traceability in complex distributed intelligent vehicle networking system. The security and performance analysis shows that the protocol can be safely and efficiently deployed in a distributed intelligent vehicle networking environment.